Transfer And Separation Sections - Olivetti d-Copia 300 Service Manual

2-1-5 Transfer and separation sections

The transfer and separation section consists mainly of the transfer roller, separation electrode and drum separation
claws.
A high voltage generated by the high-voltage transformer PCB (HVTPCB) is applied to the transfer roller for transfer
charging (100 µA).
aper after transfer is separated from the drum by applying separation bias that is output from the high-voltage
transformer PCB (HVTPCB) to the separation electrode (60 or 10 µA depending on the paper).
Drum separation claw
Separation electrode
Transfer roller
Figure 2-1-20 Transfer and separation sections
TC REM
YC7-9
SC REM
YC7-6
24 V DC
YC7-2
MPCB
Figure 2-1-21 Transfer and separation sections block diagram
SC
CN1-9
CN1-6
CN1-2 TC
HVTPCB
2FD/2FF/2FG
Drum
Separation
electrode
Drum
Transfer roller
2-1-17